diff --git a/mm/swapfile.c b/mm/swapfile.c
index 5ac5333..4b39e95 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1129,6 +1129,7 @@
 		swap_list_unlock();
 		goto out_dput;
 	}
+	destroy_swap_extents(p);
 	down(&swapon_sem);
 	swap_list_lock();
 	drain_mmlist();
@@ -1139,7 +1140,6 @@
 	swap_map = p->swap_map;
 	p->swap_map = NULL;
 	p->flags = 0;
-	destroy_swap_extents(p);
 	swap_device_unlock(p);
 	swap_list_unlock();
 	up(&swapon_sem);
@@ -1531,6 +1531,7 @@
 		set_blocksize(bdev, p->old_block_size);
 		bd_release(bdev);
 	}
+	destroy_swap_extents(p);
 bad_swap_2:
 	swap_list_lock();
 	swap_map = p->swap_map;
@@ -1540,7 +1541,6 @@
 	if (!(swap_flags & SWAP_FLAG_PREFER))
 		++least_priority;
 	swap_list_unlock();
-	destroy_swap_extents(p);
 	vfree(swap_map);
 	if (swap_file)
 		filp_close(swap_file, NULL);